This is a homework question but i would just like to clarify my solution
Given a vector
$$L_1: (1, 1, 2) + x(1, 4, 1)$$ $$L_2: (2, 2, 3) + y(1, 4, 1)$$
Finding the intersection of these $2$ lines in projective geometry will result in cross product of
$$L_1 \times L_2$$
Hence, the solution would be
$$(1, 0, 0) + z(0, 0, 0)$$
Am I right to say this?
Thanks.